## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$\dfrac{c^3}{a^3b^3}$
Using the laws of exponents, the given expression, $\left( \dfrac{ab}{c} \right)^{-3} ,$ is equivalent to \begin{array}{l}\require{cancel} \left( \dfrac{c}{ab} \right)^{3} \\\\= \dfrac{c^3}{a^3b^3} .\end{array}